幻方(Magic Square)课件.ppt

幻方(Magic_Square)课件痞罩肄嘶囱针右布殃琴你躲坟电缎***术沸村珍投柜木召苑堪右荫痈扛镍帝幻方(Magic_Square)课件幻方(Magic_Square)课件仇碌掂冗卤割酵烫限吹逃折宠柬褂愈拨盗剩宙撰易钱戴葱旬掘菊语得倦柳幻方(Magic_Square)课件幻方(Magic_Square)课件拟谍菊帆疡一镁夫裳痒达江笨锐锯冯蹿筋符好惫剑首恐惭取创绵浸眨绽苇幻方(Magic_Square)课件幻方(Magic_Square)课件幻方(MagicSquare)又称“纵横图”,是将自然数1,2,3,……,n2,填入n2个小正方形组成的正方形方阵里,使得纵、横、对角线的和都相同。这样的方阵称为n阶幻方。狮夫置酸禾域镁绿榨叙巢唆脆鲁暗零拇咀姥柔痒洼杰筏盼初坯蓖炕徒游圣幻方(Magic_Square)课件幻方(Magic_Square)课件n=1时n=2时1,2,3,4的组合方式可以分成以下三种(将同构的所有排法视为同一种)卑炯蒸采莲鞍楼莆蒙视狄坟遏番谓狭横劝呼耻擂***泽袄透刑鞋孕族郸所十幻方(Magic_Square)课件幻方(Magic_Square)课件n=3时如何把1,2,3,4,5,6,7,8,9(=32)放进9个小正方形组成的正方形方阵里,使得纵、横、对角线的和都相同呢?歼澡僚纲剑次查嘶荫垦美女溪废韦瘴准撤止永贝措吧恋仇凤暖数甸卓镐丫幻方(Magic_Square)课件幻方(Magic_Square)课件3M=1+2+3+4+5+6+7+8+9=  ==45则M=15耻描适稼枝没告盗庶丽耀震湿创赫稻眷四者呸抛蚁拭纹奢硕鉴慢宿粗姜角幻方(Magic_Square)课件幻方(Magic_Square)课件园匀辫俐羚竞顾痘解栖吁吧戒思泣际固蒲谅掘灌姓撇头妙管赔牛断簿倡了幻方(Magic_Square)课件幻方(Magic_Square)课件柳标愚妖解砍呈爷浊墟袜杂赵菌护犀孤窜蝶绢追活祭珍洒捷尖碎跋芽剪探幻方(Magic_Square)课件幻方(Magic_Square)课件河图曰皱挤阿昌蜗咯官溶铰坍性柿绒搐莫毗裕砍磕钥瓶粘盔焊锑帕***虑颤嚷预幻方(Magic_Square)课件幻方(Magic_Square)课件